Install the mkv8snapshot tool to the native side

Upstream-Status: Inappropriate [configuration]

Signed-off-by: Mikko Levonmaa <mikko.levonmaa@palm.com>
v8.pro: respect external-host-bindir, when set

Upstream-Status: Pending

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
[V8] Cleanup hardfp ABI detection. This work was triggered by issue 2140.

Upstream Patch: https://chromiumcodereview.appspot.com/10713009

Task-Number: QTBUG-28890
Change-Id: Id073388fbbffa2ad9b1cea0ab42e1d6e47862a36
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>